Harry and Shiyun had the same number of mochi balls. After Shiyun gave away 13 mochi balls and Harry gave away 41 mochi balls, Shiyun had 3 times as many mochi balls as Harry. How many mochi balls did each of them have at first?
| |
Harry |
Shiyun |
| Before |
1 u + 41 |
3 u + 13 |
| Change |
- 41 |
- 13 |
| After |
1 u |
3 u |
The number of mochi balls that Harry and Shiyun had at first is the same.
3 u + 13 = 1 u + 41
3 u - 1 u = 41 - 13
2 u = 28
1 u = 28 ÷ 2 = 14
Number of mochi balls that each of them had at first
= 1 u + 41
= 14 + 41
= 55
Answer(s): 55
